JP2012185490A5 - Spectacle lens processing shape acquisition method and spectacle lens processing shape acquisition apparatus - Google Patents
Spectacle lens processing shape acquisition method and spectacle lens processing shape acquisition apparatus Download PDFInfo
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Description
本発明は、眼鏡フレームのリムに取り付けられている備え付けレンズに代えて、屈折力を持つ度付きレンズをリムに取り付けるための眼鏡レンズ加工形状を取得する眼鏡レンズ加工形状取得方法及び眼鏡レンズ加工形状取得装置に関する。 The present invention relates to a spectacle lens processing shape acquisition method and a spectacle lens processing shape for acquiring a spectacle lens processing shape for attaching a lens with a refractive power to a rim, instead of the provided lens attached to the rim of the spectacle frame. It relates to an acquisition device .
本発明は、上記従来技術の問題点に鑑み、眼鏡レンズの段付き加工形状を含む眼鏡レンズ加工形状を取得できる眼鏡レンズ加工形状取得方法及び眼鏡レンズ加工形状取得装置を提供することを技術課題とする。 In view of the above-described problems of the prior art, the present invention provides a spectacle lens processing shape acquisition method and a spectacle lens processing shape acquisition device that can acquire spectacle lens processing shapes including stepped processing shapes of spectacle lenses. To do.
上記課題を解決するために、本発明は以下のような構成を備えることを特徴とする。
（１） 眼鏡フレームのリムに取り付けられている備え付けレンズに代えて、備え付けレンズよりコバが厚い屈折力を持つ度付きレンズをリムに取り付けるための眼鏡レンズ加工形状取得方法は、前記備え付けレンズの輪郭を取得するレンズ輪郭取得ステップと、
前記備え付けレンズがリムに取り付けられた状態でレンズ面上にリムの内側の境界に沿ってマークを付すマーク付与ステップと、前記マークが付されたレンズをリムから取り外し、取り外したレンズ面上の前記マークを基に前記備え付けレンズ面上でのリムの内側境界を取得するリム境界取得ステップと、を有し、前記レンズ輪郭取得ステップで取得された前記備え付けレンズの輪郭に基づいて前記度付きレンズの外形加工形状を取得し、前記リム境界取得ステップで取得されたレンズ面上でのリムの内側境界に基づいて前記度付きレンズの径方向の段付き加工位置を取得することを特徴とする。
（２） （１）の眼鏡レンズ加工形状取得方法において、リムから取り外した前記備え付けレンズを撮影したレンズ像を得るレンズ像取得ステップを有し、前記リム境界取得ステップは、前記レンズ像を画像処理してレンズ面に付されたマークの外側の輪郭を取得するステップを含み、取得したマークの外側の輪郭に基づいてリムの内側境界を取得することを特徴とする。
（３） （２）の眼鏡レンズ加工形状取得方法において、前記レンズ像取得ステップは、リムから取り外した前記備え付けレンズの輪郭を得るための第１撮像条件でレンズを撮像して第１レンズ像を得るステップと、前記第１レンズ像に対してレンズの内側の輝度が高くなるように調整された第２撮像条件でレンズを撮像して第２レンズ像を得るステップと、を含み、前記レンズ輪郭取得ステップは、前記第１レンズ像に基づいてレンズの輪郭を抽出し、前記リム境界取得ステップは、前記第２レンズ像に基づいてレンズ面に付されたマークの外側の輪郭を取得することを特徴とする。
（４） 眼鏡フレームのリムに取り付けられている備え付けレンズに代えて、備え付けレンズよりコバが厚い屈折力を持つ度付きレンズをリムに取り付けるための加工形状を得る眼鏡レンズ加工形状取得装置は、リムに取り付けられた状態でレンズ面上にリムの内側の境界に沿ってマークが付された前記備え付けレンズであって、リムから取り外された前記備え付けレンズを撮像して得られたレンズ像に基づいてレンズ面に付された前記マークの外側の輪郭を取得し、取得した輪郭を基に前記備え付けレンズ面上でのリムの内側境界を取得するリム境界取得手段と、リムから取り外された前記備え付けレンズを撮像して得られたレンズ像に基づいて前記備え付けレンズの輪郭を取得するレンズ輪郭取得手段と、前記レンズ輪郭取得手段で取得された前記備え付けレンズの輪郭に基づいて前記度付きレンズの外形加工形状を取得し、前記リム境界取得手段で取得されたレンズ面上でのリムの内側境界に基づいて前記度付きレンズの径方向の段付き加工位置を取得する加工形状取得手段と、を備えることを特徴とする。
In order to solve the above problems, the present invention is characterized by having the following configuration.
(1) A spectacle lens processing shape acquisition method for attaching to a rim a prescription lens having a refractive power with a thicker edge than the provided lens, instead of the provided lens attached to the rim of the spectacle frame, is the contour of the provided lens. A lens contour acquisition step for acquiring,
A step of providing a mark along the inner boundary of the rim on the lens surface in a state where the mounted lens is attached to the rim; and the lens on which the mark is attached is removed from the rim, and the lens on the removed lens surface has a rim boundary acquiring the inner boundary of the rim on the original lens surface based on the mark, the, the degree with lens based on the contour of the said original lens obtained by the lens outline obtaining step get the trimmed shape, and acquires a stepped working position in the radial direction of the degree with lens based on the inner boundary of the rim on which said rim boundary acquired acquired lens surface in the step.
(2) The eyeglass lens processing shape obtaining method (1) has a lens image obtaining step of obtaining a lens image taken the original lens removed from the rim, the rim border acquisition step, image processing the lens image And acquiring the outer contour of the mark attached to the lens surface, and acquiring the inner boundary of the rim based on the outer contour of the acquired mark.
(3) In the spectacle lens processing shape acquisition method according to (2), in the lens image acquisition step, the first lens image is obtained by imaging the lens under a first imaging condition for obtaining an outline of the attached lens removed from the rim. And obtaining a second lens image by imaging the lens under a second imaging condition adjusted such that the inner brightness of the lens is higher than the first lens image, and the lens contour The acquisition step extracts a lens contour based on the first lens image, and the rim boundary acquisition step acquires the outer contour of the mark attached to the lens surface based on the second lens image. Features.
(4) An eyeglass lens processing shape acquisition device for obtaining a processing shape for attaching a prescription lens having a refractive power with a thicker edge than the installation lens to the rim, instead of the installation lens attached to the rim of the spectacle frame, The attached lens, which is marked along the inner boundary of the rim on the lens surface in a state of being attached to the lens, based on the lens image obtained by imaging the attached lens removed from the rim Rim boundary acquisition means for acquiring an outer contour of the mark attached to the lens surface, and acquiring an inner boundary of the rim on the mounted lens surface based on the acquired contour, and the mounted lens removed from the rim Acquired by the lens contour acquisition means for acquiring the contour of the attached lens based on the lens image obtained by imaging the lens, and the lens contour acquisition means. Further, an outer shape of the prescription lens is obtained based on the outline of the prescription lens, and the radial direction of the prescription lens is obtained based on the inner boundary of the rim on the lens surface obtained by the rim boundary acquisition means. Machining shape acquisition means for acquiring a stepped machining position.
Claims (4)
前記備え付けレンズの輪郭を取得するレンズ輪郭取得ステップと、
前記備え付けレンズがリムに取り付けられた状態でレンズ面上にリムの内側の境界に沿ってマークを付すマーク付与ステップと、
前記マークが付されたレンズをリムから取り外し、取り外したレンズ面上の前記マークを基に前記備え付けレンズ面上でのリムの内側境界を取得するリム境界取得ステップと、
を有し、
前記レンズ輪郭取得ステップで取得された前記備え付けレンズの輪郭に基づいて前記度付きレンズの外形加工形状を取得し、前記リム境界取得ステップで取得されたレンズ面上でのリムの内側境界に基づいて前記度付きレンズの径方向の段付き加工位置を取得することを特徴とする眼鏡レンズ加工形状取得方法。 Instead of the provided lens attached to the rim of the spectacle frame, the spectacle lens processing shape acquisition method for attaching a prescription lens having a refractive power whose edge is thicker than the provided lens to the rim,
A lens contour obtaining step for obtaining a contour of the attached lens;
A step of providing a mark along the inner boundary of the rim on the lens surface in a state where the equipped lens is attached to the rim; and
A rim boundary acquisition step of removing the lens with the mark from the rim and acquiring an inner boundary of the rim on the provided lens surface based on the mark on the removed lens surface;
Have
Said lens on the basis of the contour of the acquired original lens contour obtaining step obtains the outline processing shape of the prescription glasses lens, based on the rim inner boundary of the on which the rim boundary acquired acquired lens surface in step A method for acquiring a spectacle lens processing shape, comprising: acquiring a stepped processing position in a radial direction of the lens with the degree.
リムから取り外した前記備え付けレンズを撮影したレンズ像を得るレンズ像取得ステップを有し、前記リム境界取得ステップは、前記レンズ像を画像処理してレンズ面に付されたマークの外側の輪郭を取得するステップを含み、取得したマークの外側の輪郭に基づいてリムの内側境界を取得することを特徴とする眼鏡レンズ加工形状取得方法。 In the eyeglass lens processing shape acquisition method according to claim 1 ,
Has a lens image obtaining step of obtaining a lens image taken the original lens removed from the rim, the rim border acquiring step acquires the outer contour of the mark of the lens image has been subjected to image processing and the lens surface A spectacle lens processing shape acquisition method, comprising: acquiring an inner boundary of the rim based on an outer contour of the acquired mark.
リムに取り付けられた状態でレンズ面上にリムの内側の境界に沿ってマークが付された前記備え付けレンズであって、リムから取り外された前記備え付けレンズを撮像して得られたレンズ像に基づいてレンズ面に付された前記マークの外側の輪郭を取得し、取得した輪郭を基に前記備え付けレンズ面上でのリムの内側境界を取得するリム境界取得手段と、The mounted lens in which a mark is attached along the inner boundary of the rim on the lens surface in a state of being attached to the rim, based on a lens image obtained by imaging the mounted lens removed from the rim. Rim boundary acquisition means for acquiring an outer contour of the mark attached to the lens surface and acquiring an inner boundary of the rim on the attached lens surface based on the acquired contour;
リムから取り外された前記備え付けレンズを撮像して得られたレンズ像に基づいて前記備え付けレンズの輪郭を取得するレンズ輪郭取得手段と、Lens contour acquisition means for acquiring a contour of the mounted lens based on a lens image obtained by imaging the mounted lens removed from the rim;
前記レンズ輪郭取得手段で取得された前記備え付けレンズの輪郭に基づいて前記度付きレンズの外形加工形状を取得し、前記リム境界取得手段で取得されたレンズ面上でのリムの内側境界に基づいて前記度付きレンズの径方向の段付き加工位置を取得する加工形状取得手段と、Based on the contour of the provided lens acquired by the lens contour acquisition means, acquires a contoured shape of the prescription lens, and based on the inner boundary of the rim on the lens surface acquired by the rim boundary acquisition means Processing shape acquisition means for acquiring a stepped processing position in the radial direction of the lens with the degree;
を備えることを特徴とする眼鏡レンズ加工形状取得装置。An eyeglass lens processing shape acquisition apparatus comprising:
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| Application Number | Priority Date | Filing Date | Title |
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| JP2012027508A JP6015021B2 (en) | 2011-02-16 | 2012-02-10 | Spectacle lens processing shape acquisition method and spectacle lens processing shape acquisition apparatus |
| US13/397,153 US8827450B2 (en) | 2011-02-16 | 2012-02-15 | Eyeglass lens processing shape obtaining method |
| EP12001020.2A EP2489466B1 (en) | 2011-02-16 | 2012-02-16 | Eyeglass lens processing shape obtaining method |
| CN201210035371.4A CN102645758B (en) | 2011-02-16 | 2012-02-16 | Eyeglass machining shape adquisitiones |
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| JP2012027508A JP6015021B2 (en) | 2011-02-16 | 2012-02-10 | Spectacle lens processing shape acquisition method and spectacle lens processing shape acquisition apparatus |
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| JP2012185490A JP2012185490A (en) | 2012-09-27 |
| JP2012185490A5 true JP2012185490A5 (en) | 2015-03-19 |
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| US (1) | US8827450B2 (en) |
| EP (1) | EP2489466B1 (en) |
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